Use old mangling

Author: aschwaighofer

test/IRGen/generic_structs.swift

@@ -38,22 +38,22 @@ public struct GenericStruct<T : Proto> {
   public init() {}
 }
 
-// CHECK-32-LABEL: define{{.*}} swiftcc void @"$S15generic_structs13GenericStructVACyxGycfC"
-// CHECK-32:  [[TYPE:%.*]] =  call %swift.type* @"$S15generic_structs13GenericStructVMa"(%swift.type* %T, i8** %T.Proto)
+// CHECK-32-LABEL: define{{.*}} swiftcc void @_T015generic_structs13GenericStructVACyxGycfC
+// CHECK-32:  [[TYPE:%.*]] =  call %swift.type* @_T015generic_structs13GenericStructVMa(%swift.type* %T, i8** %T.Proto)
 // CHECK-32:  [[PTR:%.*]] = bitcast %swift.type* %8 to i32*
 // CHECK-32:  [[FIELDOFFSETS:%.*]] = getelementptr inbounds i32, i32* [[PTR]], i32 2
 // CHECK-32:  [[FIELDOFFSET:%.*]] = getelementptr inbounds i32, i32* [[FIELDOFFSETS]], i32 2
 // CHECK-32:  [[OFFSET:%.*]] = load i32, i32* [[FIELDOFFSET]]
 // CHECK-32:  [[ADDROFOPT:%.*]] = getelementptr inbounds i8, i8* {{.*}}, i32 [[OFFSET]]
 // CHECK-32:  [[OPTPTR:%.*]] = bitcast i8* [[ADDROFOPT]] to %TSq*
-// CHECK-32:  call %TSq* @"$S15generic_structsytWb3_"(%TSq* {{.*}}, %TSq* [[OPTPTR]]
+// CHECK-32:  call %TSq* @_T015generic_structsytWb3_(%TSq* {{.*}}, %TSq* [[OPTPTR]]
 
-// CHECK-64-LABEL: define{{.*}} swiftcc void @"$S15generic_structs13GenericStructVACyxGycfC"
-// CHECK-64:  [[TYPE:%.*]] =  call %swift.type* @"$S15generic_structs13GenericStructVMa"(%swift.type* %T, i8** %T.Proto)
+// CHECK-64-LABEL: define{{.*}} swiftcc void @_T015generic_structs13GenericStructVACyxGycfC
+// CHECK-64:  [[TYPE:%.*]] =  call %swift.type* @_T015generic_structs13GenericStructVMa(%swift.type* %T, i8** %T.Proto)
 // CHECK-64:  [[PTR:%.*]] = bitcast %swift.type* %8 to i64*
 // CHECK-64:  [[FIELDOFFSETS:%.*]] = getelementptr inbounds i64, i64* [[PTR]], i64 2
 // CHECK-64:  [[FIELDOFFSET:%.*]] = getelementptr inbounds i64, i64* [[FIELDOFFSETS]], i32 2
 // CHECK-64:  [[OFFSET:%.*]] = load i64, i64* [[FIELDOFFSET]]
 // CHECK-64:  [[ADDROFOPT:%.*]] = getelementptr inbounds i8, i8* {{.*}}, i64 [[OFFSET]]
 // CHECK-64:  [[OPTPTR:%.*]] = bitcast i8* [[ADDROFOPT]] to %TSq*
-// CHECK-64:  call %TSq* @"$S15generic_structsytWb3_"(%TSq* {{.*}}, %TSq* [[OPTPTR]]
+// CHECK-64:  call %TSq* @_T015generic_structsytWb3_(%TSq* {{.*}}, %TSq* [[OPTPTR]]