Update CAS tests (NFC)

Updates 3 additional tests broken by the TMP_DIR addition to
PathSanitizingFileCheck.

Author: hnrklssn

test/CAS/cached_diagnostics_remap.swift

@@ -36,9 +36,9 @@
 // RUN:   -emit-module -o %t/test.swiftmodule /^test/test.swift -cache-replay-prefix-map /^test %t 2>&1 | %FileCheck %s --check-prefix REMAP
 
 // BRIDGE: /^test/objc.h:3:2: warning: warning in bridging header
-// BRIDGE-REMAP: BUILD_DIR{{.*}}{{/|\\}}objc.h:3:2: warning: warning in bridging header
+// BRIDGE-REMAP: TMP_DIR{{/|\\}}objc.h:3:2: warning: warning in bridging header
 // CHECK: /^test/test.swift:1:10: warning: this is a warning
-// REMAP: BUILD_DIR{{.*}}{{/|\\}}test.swift:1:10: warning: this is a warning
+// REMAP: TMP_DIR{{/|\\}}test.swift:1:10: warning: this is a warning
 
 //--- test.swift
 #warning("this is a warning")

test/CAS/debug_info_pcm.swift

@@ -17,7 +17,7 @@
 // RUN: dwarfdump --debug-info @%t/A.path | %FileCheck %s
 
 // CHECK: DW_AT_GNU_dwo_name
-// CHECK-SAME: BUILD_DIR
+// CHECK-SAME: TMP_DIR
 
 //--- test.swift
 import A

test/CAS/module_deps_clang_extras.swift

@@ -17,11 +17,11 @@
 // RUN: %validate-json %t/deps.json &>/dev/null
 
 // RUN: %{python} %S/Inputs/SwiftDepsExtractor.py %t/deps.json Test casFSRootID > %t/fs.casid
-// RUN: %cache-tool -cas-path %t/cas -cache-tool-action print-include-tree-list @%t/fs.casid | %FileCheck %s -DDIR=%basename_t -check-prefix FS_ROOT
+// RUN: %cache-tool -cas-path %t/cas -cache-tool-action print-include-tree-list @%t/fs.casid | %FileCheck %s -check-prefix FS_ROOT
 
-// FS_ROOT: [[DIR]].tmp/hidden/Dummy.h
-// FS_ROOT: [[DIR]].tmp/hidden/a.h
-// FS_ROOT: [[DIR]].tmp/hidden/b.h
+// FS_ROOT: TMP_DIR/hidden/Dummy.h
+// FS_ROOT: TMP_DIR/hidden/a.h
+// FS_ROOT: TMP_DIR/hidden/b.h
 
 // RUN: %{python} %S/Inputs/BuildCommandExtractor.py %t/deps.json clang:SwiftShims > %t/shim.cmd
 // RUN: %swift_frontend_plain @%t/shim.cmd