Tag ECMAScript 3 features

[Elchi3]

Also inspired by web-platform-dx/web-features#558
For ECMAScript 1, see #22122

Feature list (78):

• javascript.builtins.Array.concat
• javascript.builtins.Array.pop
• javascript.builtins.Array.push
• javascript.builtins.Array.shift
• javascript.builtins.Array.slice
• javascript.builtins.Array.toLocaleString
• javascript.builtins.Array.unshift
• javascript.builtins.Date.toDateString
• javascript.builtins.Date.toLocaleDateString
• javascript.builtins.Date.toLocaleTimeString
• javascript.builtins.Date.toTimeString
• javascript.builtins.Error
• javascript.builtins.Error.Error
• javascript.builtins.Error.message
• javascript.builtins.Error.name
• javascript.builtins.Error.toString
• javascript.builtins.EvalError
• javascript.builtins.EvalError.EvalError
• javascript.builtins.Function.apply
• javascript.builtins.Number.toExponential
• javascript.builtins.Number.toFixed
• javascript.builtins.Number.toLocaleString
• javascript.builtins.Number.toPrecision
• javascript.builtins.Object.hasOwnProperty
• javascript.builtins.Object.isPrototypeOf
• javascript.builtins.Object.propertyIsEnumerable
• javascript.builtins.Object.toLocaleString
• javascript.builtins.RangeError
• javascript.builtins.RangeError.RangeError
• javascript.builtins.ReferenceError
• javascript.builtins.ReferenceError.ReferenceError
• javascript.builtins.RegExp
• javascript.builtins.RegExp.RegExp
• javascript.builtins.RegExp.exec
• javascript.builtins.RegExp.global
• javascript.builtins.RegExp.ignoreCase
• javascript.builtins.RegExp.lastIndex
• javascript.builtins.RegExp.multiline
• javascript.builtins.RegExp.source
• javascript.builtins.RegExp.test
• javascript.builtins.RegExp.toString
• javascript.builtins.String.concat
• javascript.builtins.String.localeCompare
• javascript.builtins.String.match
• javascript.builtins.String.replace
• javascript.builtins.String.search
• javascript.builtins.String.slice
• javascript.builtins.String.substr
• javascript.builtins.String.toLocaleLowerCase
• javascript.builtins.String.toLocaleUpperCase
• javascript.builtins.SyntaxError
• javascript.builtins.SyntaxError.SyntaxError
• javascript.builtins.TypeError
• javascript.builtins.TypeError.TypeError
• javascript.builtins.URIError
• javascript.builtins.URIError.URIError
• javascript.builtins.decodeURI
• javascript.builtins.decodeURIComponent
• javascript.builtins.encodeURI
• javascript.builtins.encodeURIComponent
• javascript.grammar.regular_expression_literals
• javascript.regular_expressions.backreference
• javascript.regular_expressions.capturing_group
• javascript.regular_expressions.character_class
• javascript.regular_expressions.character_class_escape
• javascript.regular_expressions.character_escape
• javascript.regular_expressions.disjunction
• javascript.regular_expressions.input_boundary_assertion
• javascript.regular_expressions.literal_character
• javascript.regular_expressions.lookahead_assertion
• javascript.regular_expressions.non_capturing_group
• javascript.regular_expressions.quantifier
• javascript.regular_expressions.wildcard
• javascript.regular_expressions.word_boundary_assertion
• javascript.statements.do_while
• javascript.statements.label
• javascript.statements.throw
• javascript.statements.try_catch

[Elchi3]

Closing in favor of looking at this in a single draft PR: #22211