build: remove precompiled header and debug information for host builds

PR-URL: #42538
Refs: #42375
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Michaël Zasso <[email protected]>

Author: niyas-sait

common.gypi

@@ -280,7 +280,11 @@
           '-std:c++17'
         ],
         'BufferSecurityCheck': 'true',
-        'DebugInformationFormat': 1,          # /Z7 embed info in .obj files
+        'target_conditions': [
+          ['_toolset=="target"', {
+            'DebugInformationFormat': 1      # /Z7 embed info in .obj files
+          }],
+        ],
         'ExceptionHandling': 0,               # /EHsc
         'MultiProcessorCompilation': 'true',
         'StringPooling': 'true',              # pool string literals

tools/v8_gypfiles/v8.gyp

@@ -327,7 +327,7 @@
              '<(V8_ROOT)/src/builtins/builtins-intl-gen.cc',
            ],
          }],
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -675,7 +675,7 @@
       ],
       'sources': ['<@(v8_compiler_sources)'],
       'conditions': [
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -700,7 +700,7 @@
       ],
       'sources': ['<@(v8_compiler_sources)'],
       'conditions': [
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -890,13 +890,15 @@
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_current_cpu == \\"loong64\\".*?sources \\+= ")',
           ],
         }],        
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
             '<(_msvs_precompiled_header)',
             '<(_msvs_precompiled_source)',
-          ],
+          ]
+        }],
+        ['OS=="win"', {
           # This will prevent V8's .cc files conflicting with the inspector's
           # .cpp files in the same shard.
           'msvs_settings': {