Rename files from main.cpp to more meaningful names.

Because the main file for the dummy-executable and the actual compile
test were both called main.cpp, they were overwriting each other during
in-source builds.

Tests/CompileDefinitions/CMakeLists.txt

@@ -11,6 +11,6 @@ add_subdirectory(add_definitions_command)
 add_subdirectory(target_prop)
 add_subdirectory(add_definitions_command_with_target_prop)
 
-file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/main.cpp" "int main(int, char **) { return 0; }\n")
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummyexecutable.cpp" "int main(int, char **) { return 0; }\n")
 
-add_executable(CompileDefinitions "${CMAKE_CURRENT_BINARY_DIR}/main.cpp")
+add_executable(CompileDefinitions "${CMAKE_CURRENT_BINARY_DIR}/dummyexecutable.cpp")

Tests/CompileDefinitions/add_definitions_command/CMakeLists.txt

@@ -4,4 +4,4 @@ project(add_definitions_command)
 add_definitions(-DCMAKE_IS_FUN -DCMAKE_IS=Fun -DCMAKE_IS_="Fun" -DCMAKE_IS_REALLY="Very Fun")
 add_definitions(-DCMAKE_IS_="Fun" -DCMAKE_IS_REALLY="Very Fun" -DCMAKE_IS_FUN -DCMAKE_IS=Fun)
 
-add_executable(add_definitions_command_executable ../main.cpp)
+add_executable(add_definitions_command_executable ../compiletest.cpp)

Tests/CompileDefinitions/add_definitions_command_with_target_prop/CMakeLists.txt

@@ -3,7 +3,7 @@ project(add_definitions_command_with_target_prop)
 
 add_definitions(-DCMAKE_IS_FUN -DCMAKE_IS=Fun)
 
-add_executable(add_definitions_command_with_target_prop_executable ../main.cpp)
+add_executable(add_definitions_command_with_target_prop_executable ../compiletest.cpp)
 
 set_target_properties(add_definitions_command_with_target_prop_executable PROPERTIES COMPILE_DEFINITIONS CMAKE_IS_="Fun")
 

Tests/CompileDefinitions/target_prop/CMakeLists.txt

@@ -1,7 +1,7 @@
 
 project(target_prop)
 
-add_executable(target_prop_executable ../main.cpp)
+add_executable(target_prop_executable ../compiletest.cpp)
 
 set_target_properties(target_prop_executable PROPERTIES COMPILE_DEFINITIONS CMAKE_IS_FUN)