[CMake] Stop some exectuable link with swiftCore

swift-compatibility-symbols, swift-def-to-strings-converter,
and swift-serialize-diagnostics don't use any Swift modules. But when
SWIFT_SWIFT_PARSER was enabled, they are linked with swiftCore. But
these binaries can be executed before the runtime is being built.
We need to stop them linking with swiftCore.

(cherry picked from commit dc68773)

Author: rintaro

cmake/modules/AddSwift.cmake

@@ -830,7 +830,7 @@ endmacro()
 #
 # Usage:
 #   add_swift_host_tool(name
-#     [HAS_SWIFT_MODULES]
+#     [HAS_SWIFT_MODULES | DOES_NOT_USE_SWIFT]
 #     [THINLTO_LD64_ADD_FLTO_CODEGEN_ONLY]
 #
 #     [BOOTSTRAPPING 0|1]
@@ -844,6 +844,9 @@ endmacro()
 # HAS_SWIFT_MODULES
 #   Whether to link with SwiftCompilerSources library
 #
+# DOES_NOT_USE_SWIFT
+#   Do not link with swift runtime
+#
 # THINLTO_LD64_ADD_FLTO_CODEGEN_ONLY
 #   Opt-out of LLVM IR optimizations when linking ThinLTO with ld64
 #
@@ -859,7 +862,7 @@ endmacro()
 # source1 ...
 #   Sources to add into this executable.
 function(add_swift_host_tool executable)
-  set(options HAS_SWIFT_MODULES THINLTO_LD64_ADD_FLTO_CODEGEN_ONLY)
+  set(options HAS_SWIFT_MODULES DOES_NOT_USE_SWIFT THINLTO_LD64_ADD_FLTO_CODEGEN_ONLY)
   set(single_parameter_options SWIFT_COMPONENT BOOTSTRAPPING)
   set(multiple_parameter_options LLVM_LINK_COMPONENTS)
 
@@ -915,7 +918,7 @@ function(add_swift_host_tool executable)
   endif()
 
   # Once the new Swift parser is linked in, every host tool has Swift modules.
-  if (SWIFT_SWIFT_PARSER)
+  if (SWIFT_SWIFT_PARSER AND NOT ASHT_DOES_NOT_USE_SWIFT)
     set(ASHT_HAS_SWIFT_MODULES ON)
   endif()
 

tools/swift-compatibility-symbols/CMakeLists.txt

@@ -2,6 +2,7 @@ add_swift_host_tool(swift-compatibility-symbols
   swift-compatibility-symbols.cpp
   LLVM_LINK_COMPONENTS support
   SWIFT_COMPONENT tools
+  DOES_NOT_USE_SWIFT
 )
 
 set(syms_file "${CMAKE_BINARY_DIR}/share/swift/compatibility-symbols")

tools/swift-def-to-strings-converter/CMakeLists.txt

@@ -1,6 +1,7 @@
 add_swift_host_tool(swift-def-to-strings-converter
   swift-def-to-strings-converter.cpp
   SWIFT_COMPONENT tools
+  DOES_NOT_USE_SWIFT
 )
 
 target_link_libraries(swift-def-to-strings-converter PRIVATE

tools/swift-serialize-diagnostics/CMakeLists.txt

@@ -1,6 +1,7 @@
 add_swift_host_tool(swift-serialize-diagnostics
   swift-serialize-diagnostics.cpp
   SWIFT_COMPONENT tools
+  DOES_NOT_USE_SWIFT
 )
 target_link_libraries(swift-serialize-diagnostics PRIVATE
   swiftLocalization)