[JSC] Shrink sizeof(FunctionExecutable) by 16bytes
https://bugs.webkit.org/show_bug.cgi?id=196122

Reviewed by Saam Barati.

This patch reduces sizeof(FunctionExecutable) by 16 bytes.

1. ScriptExecutable::m_numParametersForCall and ScriptExecutable::m_numParametersForConstruct are not used in a meaningful way. Removed them.
2. ScriptExecutable::m_lastLine and ScriptExecutable::m_endColumn can be calculated from UnlinkedFunctionExecutable. So FunctionExecutable does not need to hold it.
   This patch adds GlobalExecutable, which are non-function ScriptExecutables, and move m_lastLine and m_endColumn to this class.
3. FunctionExecutable still needs to have the feature overriding m_lastLine and m_endColumn. We move overridden data in FunctionExecutable::RareData.

* CMakeLists.txt:
* JavaScriptCore.xcodeproj/project.pbxproj:
* Sources.txt:
* bytecode/UnlinkedFunctionExecutable.cpp:
(JSC::UnlinkedFunctionExecutable::link):
* runtime/EvalExecutable.cpp:
(JSC::EvalExecutable::EvalExecutable):
* runtime/EvalExecutable.h:
* runtime/FunctionExecutable.cpp:
(JSC::FunctionExecutable::FunctionExecutable):
(JSC::FunctionExecutable::ensureRareDataSlow):
(JSC::FunctionExecutable::overrideInfo):
* runtime/FunctionExecutable.h:
* runtime/GlobalExecutable.cpp: Copied from Source/JavaScriptCore/tools/FunctionOverrides.h.
* runtime/GlobalExecutable.h: Copied from Source/JavaScriptCore/tools/FunctionOverrides.h.
(JSC::GlobalExecutable::lastLine const):
(JSC::GlobalExecutable::endColumn const):
(JSC::GlobalExecutable::recordParse):
(JSC::GlobalExecutable::GlobalExecutable):
* runtime/ModuleProgramExecutable.cpp:
(JSC::ModuleProgramExecutable::ModuleProgramExecutable):
* runtime/ModuleProgramExecutable.h:
* runtime/ProgramExecutable.cpp:
(JSC::ProgramExecutable::ProgramExecutable):
* runtime/ProgramExecutable.h:
* runtime/ScriptExecutable.cpp:
(JSC::ScriptExecutable::clearCode):
(JSC::ScriptExecutable::installCode):
(JSC::ScriptExecutable::hasClearableCode const):
(JSC::ScriptExecutable::newCodeBlockFor):
(JSC::ScriptExecutable::typeProfilingEndOffset const):
(JSC::ScriptExecutable::recordParse):
(JSC::ScriptExecutable::lastLine const):
(JSC::ScriptExecutable::endColumn const):
* runtime/ScriptExecutable.h:
(JSC::ScriptExecutable::hasJITCodeForCall const):
(JSC::ScriptExecutable::hasJITCodeForConstruct const):
(JSC::ScriptExecutable::recordParse):
(JSC::ScriptExecutable::lastLine const): Deleted.
(JSC::ScriptExecutable::endColumn const): Deleted.
* tools/FunctionOverrides.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@243365 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/tools/FunctionOverrides.h b/Source/JavaScriptCore/tools/FunctionOverrides.h
index f9790e8..4a42bbc 100644
--- a/Source/JavaScriptCore/tools/FunctionOverrides.h
+++ b/Source/JavaScriptCore/tools/FunctionOverrides.h
@@ -33,18 +33,20 @@
 
 class ScriptExecutable;
 
+struct FunctionOverrideInfo {
+    SourceCode sourceCode;
+    unsigned firstLine;
+    unsigned lineCount;
+    unsigned startColumn;
+    unsigned endColumn;
+    unsigned parametersStartOffset;
+    unsigned typeProfilingStartOffset;
+    unsigned typeProfilingEndOffset;
+};
+
 class FunctionOverrides {
 public:
-    struct OverrideInfo {
-        SourceCode sourceCode;
-        unsigned firstLine;
-        unsigned lineCount;
-        unsigned startColumn;
-        unsigned endColumn;
-        unsigned parametersStartOffset;
-        unsigned typeProfilingStartOffset;
-        unsigned typeProfilingEndOffset;
-    };
+    using OverrideInfo = FunctionOverrideInfo;
 
     static FunctionOverrides& overrides();
     FunctionOverrides(const char* functionOverridesFileName);