GoogleTest: Report timeout duration on discovery failure

Modules/GoogleTestAddTests.cmake

@@ -381,6 +381,7 @@ function(gtest_discover_tests_impl)
       "Error running test executable.\n"
       "  Path: '${path}'\n"
       "  Working directory: '${arg_TEST_WORKING_DIR}'\n"
+      "  Timeout: '${arg_TEST_DISCOVERY_TIMEOUT}'\n"
       "  Result: ${result}\n"
       "  Output:\n"
       "    ${output}\n"

Tests/RunCMake/GoogleTest/GoogleTest-discovery-POST_BUILD-timeout-build-stdout.txt

@@ -4,6 +4,7 @@
 ?( *|[0-9]+>)
 ( *|[0-9]+>)    Path: '[^']*discovery_timeout_test(\.exe)?'
 ( *|[0-9]+>)    Working directory: '[^']*/Tests/RunCMake/GoogleTest/GoogleTest-discovery-timeout'
+( *|[0-9]+>)    Timeout: '[^']*'
 ( *|[0-9]+>)    Result: Process terminated due to timeout
 ( *|[0-9]+>)    Output:
 ( *|[0-9]+>)     +

Tests/RunCMake/GoogleTest/GoogleTest-discovery-PRE_TEST-timeout-test-stderr.txt

@@ -4,6 +4,7 @@ CMake Error at [^
 +
 [ \t]*Path: '[^']*discovery_timeout_test(\.exe)?'
 [ \t]*Working directory: '[^']*/Tests/RunCMake/GoogleTest/GoogleTest-discovery-timeout'
+[ \t]*Timeout: '[^']*'
 [ \t]*Result: Process terminated due to timeout
 [ \t]*Output:
 [ \t]*timeout\.