Use newer clang+llvm+clang-format.

.clang-format

@@ -3,17 +3,3 @@ BasedOnStyle: Google
 DerivePointerAlignment: false
 PointerAlignment: Left
 SortIncludes: true
-
-# The following should match defaults on Windows,
-# but were found to be different on Travis.
-
-AlignConsecutiveMacros: false
-AllowAllArgumentsOnNextLine: true
-AllowAllConstructorInitializersOnNextLine: true
-AllowShortLambdasOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: WithoutElse
-BraceWrapping:
-  AfterCaseLabel: false
-  SplitEmptyNamespace: true
-IncludeBlocks: Regroup
-SpaceAfterLogicalNot: false

.travis.yml

@@ -10,10 +10,11 @@ addons:
   apt:
     sources:
       - ubuntu-toolchain-r-test
-      - llvm-toolchain-bionic-7
+      - llvm-toolchain-9
     packages:
-      - clang-7
-      - llvm-7-dev
+      - clang-9
+      - clang-format-9
+      - llvm-9-dev
       - g++-8
       - python3
       - libc++-dev
@@ -28,10 +29,10 @@ addons:
 
 matrix:
   include:
-    - env: C_COMPILER=clang-7 CXX_COMPILER=clang++-7 LINT=true
+    - env: C_COMPILER=clang-9 CXX_COMPILER=clang++-9 LINT=true
       sudo: false
-    - env: C_COMPILER=clang-7 CXX_COMPILER=clang++-7 BUILD=true CONFIG=Debug
-    - env: C_COMPILER=clang-7 CXX_COMPILER=clang++-7 BUILD=true CONFIG=Release
+    - env: C_COMPILER=clang-9 CXX_COMPILER=clang++-9 BUILD=true CONFIG=Debug
+    - env: C_COMPILER=clang-9 CXX_COMPILER=clang++-9 BUILD=true CONFIG=Release
 
 git:
   # We handle submodules ourselves in xenia-build setup.
@@ -44,6 +45,8 @@ before_script:
   # Dump useful info.
   - $CXX --version
   - python3 --version
+  - clang-format-9 --version
+  - clang-format-9 -style=file -dump-config
   # Add Vulkan dependencies.
   - travis_retry wget http://mirrors.kernel.org/ubuntu/pool/universe/v/vulkan/libvulkan1_$LIBVULKAN_VERSION+dfsg1-1_amd64.deb
   - travis_retry wget http://mirrors.kernel.org/ubuntu/pool/universe/v/vulkan/libvulkan-dev_$LIBVULKAN_VERSION+dfsg1-1_amd64.deb

xenia-build

@@ -310,7 +310,7 @@ def get_clang_format_binary():
     attempts = [
         'C:\\Program Files\\LLVM\\bin\\clang-format.exe',
         'C:\\Program Files (x86)\\LLVM\\bin\\clang-format.exe',
-        'clang-format-3.8',
+        'clang-format-9',
         'clang-format',
         ]
     for binary in attempts:
@@ -318,7 +318,7 @@ def get_clang_format_binary():
             return binary
     print('ERROR: clang-format is not on PATH')
     print('LLVM is available from https://llvm.org/releases/download.html')
-    print('At least version 3.8 is required.')
+    print('At least version 9 is required.')
     print('See docs/style_guide.md for instructions on how to get it.')
     sys.exit(1)