tools: python: update flake8 rules

* Tree-factor location of some *.py files for easy demarcation of
  areas to exclude.

PR-URL: #25614
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>

.flake8

@@ -1,3 +1,3 @@
 [flake8]
-exclude=.git,deps,lib,src,test/fixtures,tools/*_macros.py,tools/gyp,tools/inspector_protocol,tools/jinja2,tools/markupsafe,tools/pip,tools/v8_gypfiles/broken
-select=E901,E999,F821,F822,F823
+exclude=.git,deps,lib,src,tools/gyp,tools/inspector_protocol,tools/pip,tools/v8_gypfiles/broken
+select=E9,F82

node.gyp

@@ -805,20 +805,20 @@
           'inputs': [
             '<@(library_files)',
             'config.gypi',
-            'tools/check_macros.py'
+            'tools/js2c_macros/check_macros.py'
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/node_javascript.cc',
           ],
           'conditions': [
             [ 'node_use_dtrace=="false" and node_use_etw=="false"', {
-              'inputs': [ 'src/notrace_macros.py' ]
+              'inputs': [ 'tools/js2c_macros/notrace_macros.py' ]
             }],
             [ 'node_debug_lib=="false"', {
-              'inputs': [ 'tools/nodcheck_macros.py' ]
+              'inputs': [ 'tools/js2c_macros/nodcheck_macros.py' ]
             }],
             [ 'node_debug_lib=="true"', {
-              'inputs': [ 'tools/dcheck_macros.py' ]
+              'inputs': [ 'tools/js2c_macros/dcheck_macros.py' ]
             }]
           ],
           'action': [

src/inspector/node_inspector.gypi

@@ -97,7 +97,7 @@
       'action': [
         'python',
         'tools/inspector_protocol/code_generator.py',
-        '--jinja_dir', '<@(protocol_tool_path)/..',
+        '--jinja_dir', '<@(protocol_tool_path)',
         '--output_base', '<(SHARED_INTERMEDIATE_DIR)/src/',
         '--config', 'src/inspector/node_protocol_config.json',
       ],

test/fixtures/wpt/.gitignore

@@ -0,0 +1 @@
+*.py

tools/check_macros.py → tools/js2c_macros/check_macros.py

@@ -1,3 +1,4 @@
+# flake8: noqa
 macro CHECK(x) = do { if (!(x)) (process._rawDebug("CHECK: x == true"), process.abort()) } while (0);
 macro CHECK_EQ(a, b) = CHECK((a) === (b));
 macro CHECK_GE(a, b) = CHECK((a) >= (b));