[CIR] Remove inferred context from pointer type getters (#138858)

This mirror incubator changes from llvm/clangir#1600

Author: xlauko

clang/include/clang/CIR/Dialect/Builder/CIRBaseBuilder.h

@@ -111,7 +111,7 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
   cir::BoolType getBoolTy() { return cir::BoolType::get(getContext()); }
 
   cir::PointerType getPointerTo(mlir::Type ty) {
-    return cir::PointerType::get(getContext(), ty);
+    return cir::PointerType::get(ty);
   }
 
   cir::PointerType getVoidPtrTy() {

clang/lib/CIR/CodeGen/CIRGenExpr.cpp

@@ -42,7 +42,7 @@ Address CIRGenFunction::emitAddrOfFieldStorage(Address base,
   mlir::Location loc = getLoc(field->getLocation());
 
   mlir::Type fieldType = convertType(field->getType());
-  auto fieldPtr = cir::PointerType::get(builder.getContext(), fieldType);
+  auto fieldPtr = cir::PointerType::get(fieldType);
   // For most cases fieldName is the same as field->getName() but for lambdas,
   // which do not currently carry the name, so it can be passed down from the
   // CaptureStmt.