Use more comprehensive signature strings for methods.

test/fiber/error.wren

@@ -3,5 +3,5 @@ var fiber = new Fiber {
 }
 
 IO.print(fiber.error) // expect: null
-IO.print(fiber.try)   // expect: String does not implement method 'unknown' with 0 arguments.
-IO.print(fiber.error) // expect: String does not implement method 'unknown' with 0 arguments.
+IO.print(fiber.try)   // expect: String does not implement 'unknown'.
+IO.print(fiber.error) // expect: String does not implement 'unknown'.

test/fiber/try.wren

@@ -6,5 +6,5 @@ var fiber = new Fiber {
 
 IO.print(fiber.try)
 // expect: before
-// expect: Bool does not implement method 'unknownMethod' with 0 arguments.
+// expect: Bool does not implement 'unknownMethod'.
 IO.print("after try") // expect: after try

test/inheritance/do_not_inherit_static_methods.wren

@@ -4,4 +4,4 @@ class Foo {
 
 class Bar is Foo {}
 
-Bar.methodOnFoo // expect runtime error: Bar metaclass does not implement method 'methodOnFoo' with 0 arguments.
+Bar.methodOnFoo // expect runtime error: Bar metaclass does not implement 'methodOnFoo'.

test/list/all_non_function_arg.wren

@@ -1 +1 @@
-[1, 2, 3].all("string") // expect runtime error: String does not implement method 'call' with 1 argument.
+[1, 2, 3].all("string") // expect runtime error: String does not implement 'call(_)'.

test/method/not_found.wren

@@ -1,3 +1,3 @@
 class Foo {}
 
-(new Foo).someUnknownMethod // expect runtime error: Foo does not implement method 'someUnknownMethod' with 0 arguments.
+(new Foo).someUnknownMethod // expect runtime error: Foo does not implement 'someUnknownMethod'.

test/method/not_found_eleven_arguments.wren

@@ -1,3 +1,3 @@
 class Foo {}
 
-(new Foo).someUnknownMethod(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11) // expect runtime error: Foo does not implement method 'someUnknownMethod' with 11 arguments.
+(new Foo).someUnknownMethod(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11) // expect runtime error: Foo does not implement 'someUnknownMethod(_,_,_,_,_,_,_,_,_,_,_)'.

test/method/not_found_multiple_arguments.wren

@@ -1,3 +1,3 @@
 class Foo {}
 
-(new Foo).someUnknownMethod(1, 2) // expect runtime error: Foo does not implement method 'someUnknownMethod' with 2 arguments.
+(new Foo).someUnknownMethod(1, 2) // expect runtime error: Foo does not implement 'someUnknownMethod(_,_)'.

test/method/not_found_one_argument.wren

@@ -1,3 +1,3 @@
 class Foo {}
 
-(new Foo).someUnknownMethod(1) // expect runtime error: Foo does not implement method 'someUnknownMethod' with 1 argument.
+(new Foo).someUnknownMethod(1) // expect runtime error: Foo does not implement 'someUnknownMethod(_)'.

test/method/static_method_not_found.wren

@@ -1,3 +1,3 @@
 class Foo {}
 
-Foo.bar // expect runtime error: Foo metaclass does not implement method 'bar' with 0 arguments.
+Foo.bar // expect runtime error: Foo metaclass does not implement 'bar'.

test/super/no_superclass_method.wren

@@ -1,7 +1,7 @@
 class Base {}
 
 class Derived is Base {
-  foo { super.doesNotExist } // expect runtime error: Base does not implement method 'doesNotExist' with 0 arguments.
+  foo { super.doesNotExist(1) } // expect runtime error: Base does not implement 'doesNotExist(_)'.
 }
 
 (new Derived).foo