co19/LanguageFeatures/Patterns/switch_expression_A02_t01

[scheglov]

A few issues here - missing return before switch expressions, unresolved r.

FAILED: dart2analyzer-none release_arm64 co19/LanguageFeatures/Patterns/switch_expression_A02_t01
Expected: Pass
Actual: CompileTimeError

--- Command "dart2analyzer" (took 06.000137s):
DART_CONFIGURATION=ReleaseARM64 sdk/bin/dart --packages=.dart_tool/package_config.json pkg/analyzer_cli/bin/analyzer.dart --use-analysis-driver-memory-byte-store --dart-sdk=/Users/scheglov/Source/Dart/sdk.git/sdk/sdk -Dtest_runner.configuration=custom-configuration-1 --enable-experiment=patterns,records --ignore-unrecognized-flags --packages=/Users/scheglov/Source/Dart/sdk.git/sdk/.dart_tool/package_config.json --format=json /Users/scheglov/Source/Dart/sdk.git/sdk/tests/co19/src/LanguageFeatures/Patterns/switch_expression_A02_t01.dart

unexpected analysis errors in switch_expression_A02_t01.dart:
- Line 70, column 8: COMPILE_TIME_ERROR.BODY_MIGHT_COMPLETE_NORMALLY
  The body might complete normally, causing 'null' to be returned, but the return type, 'String', is a potentially non-nullable type.

- Line 72, column 5: SYNTACTIC_ERROR.EXPECTED_TOKEN
  Expected to find 'case'.

- Line 88, column 15: COMPILE_TIME_ERROR.CONSTANT_PATTERN_WITH_NON_CONSTANT_EXPRESSION
  The expression of a constant pattern must be a valid constant.

- Line 88, column 15: COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
  Undefined name 'r'.

- Line 88, column 24: COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
  Undefined name 'r'.

- Line 92, column 8: COMPILE_TIME_ERROR.BODY_MIGHT_COMPLETE_NORMALLY
  The body might complete normally, causing 'null' to be returned, but the return type, 'String', is a potentially non-nullable type.

- Line 94, column 5: SYNTACTIC_ERROR.EXPECTED_TOKEN
  Expected to find 'case'.

- Line 99, column 8: COMPILE_TIME_ERROR.BODY_MIGHT_COMPLETE_NORMALLY
  The body might complete normally, causing 'null' to be returned, but the return type, 'String', is a potentially non-nullable type.

- Line 101, column 5: SYNTACTIC_ERROR.EXPECTED_TOKEN
  Expected to find 'case'.

- Line 167, column 1: SYNTACTIC_ERROR.EXPECTED_TOKEN
  Expected to find '}'.

--- Re-run this test:
python3 tools/test.py -m release -c dart2analyzer -a arm64 co19/LanguageFeatures/Patterns/switch_expression_A02_t01