Merge pull request #77784 from swiftlang/fine-grained-variable

FineModuleTrace: use SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH to indicate where the fine module trace should be emitted to. NFC

Author: nkcsgexi

lib/Frontend/ArgsToFrontendOutputsConverter.cpp

@@ -458,11 +458,11 @@ SupplementaryOutputPathsComputer::computeOutputPathsForOneInput(
   // We piggy-back on the loadedModuleTracePath to decide (1) whether
   // to emit the fine module Trace file, and (2) where to emit the fine module
   // trace file if the path isn't explicitly given by
-  // SWIFT_COMPILER_OBJC_MESSAGE_TRACE_PATH.
+  // SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH.
   // FIXME: we probably need to move this to a frontend argument.
   llvm::SmallString<128> FineModuleTracePath;
   if (!loadedModuleTracePath.empty()) {
-    if (const char *P = ::getenv("SWIFT_COMPILER_OBJC_MESSAGE_TRACE_PATH")) {
+    if (const char *P = ::getenv("SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH")) {
       StringRef FilePath = P;
       llvm::sys::path::append(FineModuleTracePath, FilePath);
     } else {

test/IDE/objc_send_collector_1.swift

@@ -4,7 +4,7 @@
 // RUN: %target-swift-frontend  -I %t/lib/swift -typecheck %s %S/Inputs/objc_send_collector_2.swift -module-name main -swift-version 5 -F %S/Inputs/mock-sdk -emit-loaded-module-trace-path %t/.MODULE_TRACE
 // RUN: cat %t/.SWIFT_FINE_DEPENDENCY_TRACE.json | %{python} -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' | %FileCheck %s
 
-// RUN: SWIFT_COMPILER_OBJC_MESSAGE_TRACE_PATH=%t/given_trace.json %target-swift-frontend  -I %t/lib/swift -typecheck %s %S/Inputs/objc_send_collector_2.swift -module-name main -swift-version 5 -F %S/Inputs/mock-sdk -emit-loaded-module-trace-path %t/.MODULE_TRACE
+// RUN: SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH=%t/given_trace.json %target-swift-frontend  -I %t/lib/swift -typecheck %s %S/Inputs/objc_send_collector_2.swift -module-name main -swift-version 5 -F %S/Inputs/mock-sdk -emit-loaded-module-trace-path %t/.MODULE_TRACE
 // RUN: cat %t/given_trace.json | %{python} -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' | %FileCheck %s
 
 // REQUIRES: objc_interop