Revise C++ coding style using clang-format-6.0

Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`.  Use `clang-format` version 6.0.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

Tests/CompileDefinitions/compiletest.c

@@ -1,20 +1,20 @@
 
 #ifndef LINK_C_DEFINE
-#error Expected LINK_C_DEFINE
+#  error Expected LINK_C_DEFINE
 #endif
 #ifndef LINK_LANGUAGE_IS_C
-#error Expected LINK_LANGUAGE_IS_C
+#  error Expected LINK_LANGUAGE_IS_C
 #endif
 
 #ifdef LINK_CXX_DEFINE
-#error Unexpected LINK_CXX_DEFINE
+#  error Unexpected LINK_CXX_DEFINE
 #endif
 #ifdef LINK_LANGUAGE_IS_CXX
-#error Unexpected LINK_LANGUAGE_IS_CXX
+#  error Unexpected LINK_LANGUAGE_IS_CXX
 #endif
 
 #ifdef DEBUG_MODE
-#error Unexpected DEBUG_MODE
+#  error Unexpected DEBUG_MODE
 #endif
 
 int main(void)

Tests/CompileDefinitions/compiletest.cpp

@@ -1,10 +1,10 @@
 
 #ifndef CMAKE_IS_FUN
-#error Expect CMAKE_IS_FUN definition
+#  error Expect CMAKE_IS_FUN definition
 #endif
 
 #if CMAKE_IS != Fun
-#error Expect CMAKE_IS=Fun definition
+#  error Expect CMAKE_IS=Fun definition
 #endif
 
 template <bool test>
@@ -43,67 +43,67 @@ enum
 };
 
 #ifdef TEST_GENERATOR_EXPRESSIONS
-#ifndef CMAKE_IS_DECLARATIVE
-#error Expect declarative definition
-#endif
-#ifdef GE_NOT_DEFINED
-#error Expect not defined generator expression
-#endif
+#  ifndef CMAKE_IS_DECLARATIVE
+#    error Expect declarative definition
+#  endif
+#  ifdef GE_NOT_DEFINED
+#    error Expect not defined generator expression
+#  endif
 
-#ifndef ARGUMENT
-#error Expected define expanded from list
-#endif
-#ifndef LIST
-#error Expected define expanded from list
-#endif
+#  ifndef ARGUMENT
+#    error Expected define expanded from list
+#  endif
+#  ifndef LIST
+#    error Expected define expanded from list
+#  endif
 
-#ifndef PREFIX_DEF1
-#error Expect PREFIX_DEF1
-#endif
+#  ifndef PREFIX_DEF1
+#    error Expect PREFIX_DEF1
+#  endif
 
-#ifndef PREFIX_DEF2
-#error Expect PREFIX_DEF2
-#endif
+#  ifndef PREFIX_DEF2
+#    error Expect PREFIX_DEF2
+#  endif
 
-#ifndef LINK_CXX_DEFINE
-#error Expected LINK_CXX_DEFINE
-#endif
-#ifndef LINK_LANGUAGE_IS_CXX
-#error Expected LINK_LANGUAGE_IS_CXX
-#endif
+#  ifndef LINK_CXX_DEFINE
+#    error Expected LINK_CXX_DEFINE
+#  endif
+#  ifndef LINK_LANGUAGE_IS_CXX
+#    error Expected LINK_LANGUAGE_IS_CXX
+#  endif
 
-#ifdef LINK_C_DEFINE
-#error Unexpected LINK_C_DEFINE
-#endif
-#ifdef LINK_LANGUAGE_IS_C
-#error Unexpected LINK_LANGUAGE_IS_C
-#endif
+#  ifdef LINK_C_DEFINE
+#    error Unexpected LINK_C_DEFINE
+#  endif
+#  ifdef LINK_LANGUAGE_IS_C
+#    error Unexpected LINK_LANGUAGE_IS_C
+#  endif
 
 // TEST_GENERATOR_EXPRESSIONS
 #endif
 
 #ifndef BUILD_IS_DEBUG
-#error "BUILD_IS_DEBUG not defined!"
+#  error "BUILD_IS_DEBUG not defined!"
 #endif
 #ifndef BUILD_IS_NOT_DEBUG
-#error "BUILD_IS_NOT_DEBUG not defined!"
+#  error "BUILD_IS_NOT_DEBUG not defined!"
 #endif
 
 // Check per-config definitions.
 #ifdef TEST_CONFIG_DEBUG
-#if !BUILD_IS_DEBUG
-#error "BUILD_IS_DEBUG false with TEST_CONFIG_DEBUG!"
-#endif
-#if BUILD_IS_NOT_DEBUG
-#error "BUILD_IS_NOT_DEBUG true with TEST_CONFIG_DEBUG!"
-#endif
+#  if !BUILD_IS_DEBUG
+#    error "BUILD_IS_DEBUG false with TEST_CONFIG_DEBUG!"
+#  endif
+#  if BUILD_IS_NOT_DEBUG
+#    error "BUILD_IS_NOT_DEBUG true with TEST_CONFIG_DEBUG!"
+#  endif
 #else
-#if BUILD_IS_DEBUG
-#error "BUILD_IS_DEBUG true without TEST_CONFIG_DEBUG!"
-#endif
-#if !BUILD_IS_NOT_DEBUG
-#error "BUILD_IS_NOT_DEBUG false without TEST_CONFIG_DEBUG!"
-#endif
+#  if BUILD_IS_DEBUG
+#    error "BUILD_IS_DEBUG true without TEST_CONFIG_DEBUG!"
+#  endif
+#  if !BUILD_IS_NOT_DEBUG
+#    error "BUILD_IS_NOT_DEBUG false without TEST_CONFIG_DEBUG!"
+#  endif
 #endif
 
 int main(int argc, char** argv)

Tests/CompileDefinitions/compiletest_mixed_c.c

@@ -1,20 +1,20 @@
 
 #ifndef LINK_CXX_DEFINE
-#error Expected LINK_CXX_DEFINE
+#  error Expected LINK_CXX_DEFINE
 #endif
 #ifndef LINK_LANGUAGE_IS_CXX
-#error Expected LINK_LANGUAGE_IS_CXX
+#  error Expected LINK_LANGUAGE_IS_CXX
 #endif
 
 #ifdef LINK_C_DEFINE
-#error Unexpected LINK_C_DEFINE
+#  error Unexpected LINK_C_DEFINE
 #endif
 #ifdef LINK_LANGUAGE_IS_C
-#error Unexpected LINK_LANGUAGE_IS_C
+#  error Unexpected LINK_LANGUAGE_IS_C
 #endif
 
 #ifndef C_EXECUTABLE_LINK_LANGUAGE_IS_C
-#error Expected C_EXECUTABLE_LINK_LANGUAGE_IS_C define
+#  error Expected C_EXECUTABLE_LINK_LANGUAGE_IS_C define
 #endif
 
 void someFunc(void)

Tests/CompileDefinitions/compiletest_mixed_cxx.cpp

@@ -1,20 +1,20 @@
 
 #ifndef LINK_CXX_DEFINE
-#error Expected LINK_CXX_DEFINE
+#  error Expected LINK_CXX_DEFINE
 #endif
 #ifndef LINK_LANGUAGE_IS_CXX
-#error Expected LINK_LANGUAGE_IS_CXX
+#  error Expected LINK_LANGUAGE_IS_CXX
 #endif
 
 #ifdef LINK_C_DEFINE
-#error Unexpected LINK_C_DEFINE
+#  error Unexpected LINK_C_DEFINE
 #endif
 #ifdef LINK_LANGUAGE_IS_C
-#error Unexpected LINK_LANGUAGE_IS_C
+#  error Unexpected LINK_LANGUAGE_IS_C
 #endif
 
 #ifndef C_EXECUTABLE_LINK_LANGUAGE_IS_C
-#error Expected C_EXECUTABLE_LINK_LANGUAGE_IS_C define
+#  error Expected C_EXECUTABLE_LINK_LANGUAGE_IS_C define
 #endif
 
 int main(int argc, char** argv)

Tests/CompileDefinitions/runtest.c

@@ -3,7 +3,7 @@
 #include <string.h>
 
 #ifndef BUILD_CONFIG_NAME
-#error "BUILD_CONFIG_NAME not defined!"
+#  error "BUILD_CONFIG_NAME not defined!"
 #endif
 
 int main()

Tests/CompileDefinitions/target_prop/usetgt.c

@@ -1,11 +1,11 @@
 #ifndef TGT_DEF
-#error TGT_DEF incorrectly not defined
+#  error TGT_DEF incorrectly not defined
 #endif
 #ifndef TGT_TYPE_STATIC_LIBRARY
-#error TGT_TYPE_STATIC_LIBRARY incorrectly not defined
+#  error TGT_TYPE_STATIC_LIBRARY incorrectly not defined
 #endif
 #ifdef TGT_TYPE_EXECUTABLE
-#error TGT_TYPE_EXECUTABLE incorrectly defined
+#  error TGT_TYPE_EXECUTABLE incorrectly defined
 #endif
 int main(void)
 {