CI: Bump LDC-LLVM to v12.0.0 for remaining Darwin jobs (#3749)

Author: kinke

.circleci/config.yml

@@ -128,7 +128,7 @@ jobs:
     environment:
       - PARALLELISM: 4
       - CI_OS: osx
-      - LLVM_VERSION: 11.0.1
+      - LLVM_VERSION: 12.0.0
       - HOST_LDC_VERSION: 1.24.0
       - EXTRA_CMAKE_FLAGS: "-DBUILD_LTO_LIBS=ON"
   macOS-x64-sharedLibsOnly:
@@ -138,7 +138,7 @@ jobs:
     environment:
       - PARALLELISM: 4
       - CI_OS: osx
-      - LLVM_VERSION: 11.0.1
+      - LLVM_VERSION: 12.0.0
       - HOST_LDC_VERSION: 1.24.0
       - EXTRA_CMAKE_FLAGS: "-DBUILD_SHARED_LIBS=ON -DBUILD_LTO_LIBS=ON"
 

.cirrus.yml

@@ -152,7 +152,7 @@ task:
   timeout_in: 60m
   environment:
     CI_OS: osx
-    LLVM_VERSION: 11.0.1
+    LLVM_VERSION: 12.0.0
     # OS is preset to `darwin`
     OS: osx
     PATH: ${CIRRUS_WORKING_DIR}/../cmake/bin:${CIRRUS_WORKING_DIR}/../ninja:${CIRRUS_WORKING_DIR}/../llvm/bin:${PATH}

bitrise.yml

@@ -7,7 +7,7 @@ app:
     - BITRISE_PROJECT_PATH: ldc-build-runtime.tmp/TestRunner/TestRunner.xcodeproj
     - BITRISE_SCHEME: TestRunner
     - BITRISE_EXPORT_METHOD: development
-    - LLVM_VERSION: 11.0.1
+    - LLVM_VERSION: 12.0.0
     - HOST_LDC_VERSION: 1.24.0
     - IOS_VERSION: 12.0