Add pretty print and skip synthesized members to the frontend options

include/swift/Option/Options.td

@@ -1779,6 +1779,14 @@ def emit_symbol_graph_dir : Separate<["-"], "emit-symbol-graph-dir">,
   HelpText<"Emit a symbol graph to directory <dir>">,
   MetaVarName<"<dir>">;
 
+def symbol_graph_pretty_print: Flag<["-"], "symbol-graph-pretty-print">,
+  Flags<[FrontendOption, NoInteractiveOption, HelpHidden, SupplementaryOutput]>,
+  HelpText<"Pretty-print the output symbol graph JSON">;
+
+def symbol_graph_skip_synthesized_members: Flag<["-"], "symbol-graph-skip-synthesized-members">,
+  Flags<[FrontendOption, NoInteractiveOption, HelpHidden, SupplementaryOutput]>,
+  HelpText<"Skip members inherited through classes or default implementations">;
+
 def symbol_graph_minimum_access_level: Separate<["-"], "symbol-graph-minimum-access-level">,
   Flags<[FrontendOption, NoInteractiveOption, SupplementaryOutput, HelpHidden]>,
   HelpText<"Include symbols with this access level or more when emitting a symbol graph">,

lib/Driver/ToolChains.cpp

@@ -706,6 +706,8 @@ ToolChain::constructInvocation(const CompileJobAction &job,
   context.Args.AddLastArg(Arguments, options::OPT_emit_extension_block_symbols,
                           options::OPT_omit_extension_block_symbols);
   context.Args.AddLastArg(Arguments, options::OPT_symbol_graph_minimum_access_level);
+  context.Args.AddLastArg(Arguments, options::OPT_symbol_graph_skip_synthesized_members);
+  context.Args.AddLastArg(Arguments, options::OPT_symbol_graph_pretty_print);
 
   return II;
 }

lib/Frontend/CompilerInvocation.cpp

@@ -2283,8 +2283,8 @@ static void ParseSymbolGraphArgs(symbolgraphgen::SymbolGraphOptions &Opts,
   }
 
   // default values for generating symbol graphs during a build
-  Opts.PrettyPrint = false;
-  Opts.EmitSynthesizedMembers = true;
+  Opts.PrettyPrint = Args.hasArg(OPT_symbol_graph_pretty_print);
+  Opts.EmitSynthesizedMembers = !Args.hasArg(OPT_symbol_graph_skip_synthesized_members);
   Opts.PrintMessages = false;
   Opts.IncludeClangDocs = false;
 }

test/SymbolGraph/Symbols/SkipsSynthesizedMembers.swift

@@ -0,0 +1,10 @@
+// RUN: %empty-directory(%t)
+// RUN: %target-build-swift %s -module-name SkipsSynthesizedMembers -emit-module -emit-module-path %t/
+// RUN: %target-swift-symbolgraph-extract -module-name SkipsSynthesizedMembers -I %t -pretty-print -skip-synthesized-members -output-dir %t
+// RUN: %FileCheck %s --input-file %t/SkipsSynthesizedMembers.symbols.json
+
+// CHECK-NOT: ::SYNTHESIZED
+
+public struct ShouldAppear: Hashable {
+    public let foo: Int
+}