Add valid args to sanitizer-coverage

Adds valid arguments to sanitizer-coverage pc-table and inline-8bit-counter. Currently you cannot set all default fuzzer options directly using sanitizer coverage. Right now you can choose default fuzzer args, or a limited number coverage options. This PR extends coverage options to allow pc-table and inline-8bit-counter. This algins with default fuzzer options to allow customizing sanitizer-coverage in variations of fuzzer defaults. (i.e. Fuzzer defaults w/o pc-table enabled).

In upstream llvm the option -no-sanitize-coverage exists to disable various fuzzing options. Swift current does not have a convention of using excluding args. This aims to limit the need for that by being able to inclusively set desired coverage.

rdar://127950283

Author: thetruestblue

Sources/SwiftDriver/Driver/Driver.swift

@@ -3146,7 +3146,7 @@ extension Driver {
     for arg in parsedOptions.arguments(for: .sanitizeCoverageEQ).flatMap(\.argument.asMultiple) {
       if ["func", "bb", "edge"].contains(arg) {
         foundRequiredArg = true
-      } else if !["indirect-calls", "trace-bb", "trace-cmp", "8bit-counters", "trace-pc", "trace-pc-guard"].contains(arg) {
+      } else if !["indirect-calls", "trace-bb", "trace-cmp", "8bit-counters", "trace-pc", "trace-pc-guard","pc-table","inline-8bit-counters",].contains(arg) {
         diagnosticsEngine.emit(.error_unsupported_argument(argument: arg, option: .sanitizeCoverageEQ))
       }
 

Tests/SwiftDriverTests/SwiftDriverTests.swift

@@ -2799,7 +2799,7 @@ final class SwiftDriverTests: XCTestCase {
       $1.expect(.error("unsupported argument 'baz' to option '-sanitize-coverage='"))
     }
 
-    try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-sanitize=thread", "-sanitize-coverage=edge,indirect-calls,trace-bb,trace-cmp,8bit-counters")
+    try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-sanitize=thread", "-sanitize-coverage=edge,indirect-calls,trace-bb,trace-cmp,8bit-counters,pc-table,inline-8bit-counters")
 #endif
   }