[WebAssemly] Associate symbol with InputChunk in which they are defined. NFC.

Summary:
Rather than explicit Function or InputSegment points store a
pointer to the base class (InputChunk) and use llvm dynamic
casts when we need a subtype.

This change is useful for add the upcoming gc-section support
wants to deal with all input chunks.

Subscribers: aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D42625

llvm-svn: 323621

1 files changed, 2 insertions, 2 deletions

diff --git a/lld/wasm/SymbolTable.h b/lld/wasm/SymbolTable.h
index 65c95b1603e..d2857141649 100644
--- a/lld/wasm/SymbolTable.h
+++ b/lld/wasm/SymbolTable.h
@@ -50,8 +50,8 @@ public:
   ObjFile *findComdat(StringRef Name) const;
 
   Symbol *addDefined(StringRef Name, Symbol::Kind Kind, uint32_t Flags,
-                     InputFile *F, const InputSegment *Segment = nullptr,
-                     InputFunction *Function = nullptr, uint32_t Address = 0);
+                     InputFile *F,
+                     InputChunk *Chunk = nullptr, uint32_t Address = 0);
   Symbol *addUndefined(StringRef Name, Symbol::Kind Kind, uint32_t Flags,
                        InputFile *F, const WasmSignature *Signature = nullptr);
   Symbol *addUndefinedFunction(StringRef Name, const WasmSignature *Type);