Move AsmParser::parseTypeList() out-of-line (NFC)

There is an ABI incompatibility between clang and gcc that is unfortunate and
has bitten users multiple times already.

Fixes #62918

Author: joker-eph

mlir/include/mlir/IR/OpImplementation.h

@@ -1242,10 +1242,7 @@ class AsmParser {
   }
 
   /// Parse a type list.
-  ParseResult parseTypeList(SmallVectorImpl<Type> &result) {
-    return parseCommaSeparatedList(
-        [&]() { return parseType(result.emplace_back()); });
-  }
+  ParseResult parseTypeList(SmallVectorImpl<Type> &result);
 
   /// Parse an arrow followed by a type list.
   virtual ParseResult parseArrowTypeList(SmallVectorImpl<Type> &result) = 0;

mlir/lib/IR/AsmPrinter.cpp

@@ -67,6 +67,15 @@ OpAsmParser::~OpAsmParser() = default;
 
 MLIRContext *AsmParser::getContext() const { return getBuilder().getContext(); }
 
+/// Parse a type list.
+/// This is out-of-line to work-around https://github.com/llvm/llvm-project/issues/62918
+ParseResult AsmParser::parseTypeList(SmallVectorImpl<Type> &result) {
+    return parseCommaSeparatedList(
+        [&]() { return parseType(result.emplace_back()); });
+  }
+
+
+
 //===----------------------------------------------------------------------===//
 // DialectAsmPrinter
 //===----------------------------------------------------------------------===//