Fix for issue 1399 (and minor error message clean-up)

compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java

Index: compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java
===================================================================
--- compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java	(revision 8308)
+++ compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java	(working copy)
@@ -16,17 +16,17 @@
  */
 public enum ParserErrorCode implements ErrorCode {
   ABSTRACT_MEMBER_IN_INTERFACE("Abstract members are not allowed in interfaces"),
-  ABSTRACT_METHOD_WITH_BODY("Abstract method can not have a body"),
+  ABSTRACT_METHOD_WITH_BODY("Abstract method cannot have a body"),
   ABSTRACT_TOP_LEVEL_ELEMENT("Only class can be abstract top-level element"),
   CATCH_OR_FINALLY_EXPECTED("catch or finally clause expected."),
   DEFAULT_VALUE_CAN_NOT_BE_SPECIFIED_IN_ABSTRACT(
-      "Default values can not be specified in abstract method"),
+      "Default values cannot be specified in abstract method"),
   DEFAULT_VALUE_CAN_NOT_BE_SPECIFIED_IN_CLOSURE(
-      "Default values can not be specified in closure parameter"),
+      "Default values cannot be specified in closure parameter"),
   DEFAULT_VALUE_CAN_NOT_BE_SPECIFIED_IN_INTERFACE(
-      "Default values can not be specified in signature of an interface method"),
+      "Default values cannot be specified in signature of an interface method"),
   DEFAULT_VALUE_CAN_NOT_BE_SPECIFIED_IN_TYPEDEF(
-      "Default values can not be specified in closure type definition"),
+      "Default values cannot be specified in closure type definition"),
   DEFAULT_POSITIONAL_PARAMETER("Positional parameters cannot have default values"),
   DEPRECATED_USE_OF_FACTORY_KEYWORD("Deprecated use of the 'factory' keyword: use 'default' instead"),
   DIRECTIVE_OUT_OF_ORDER("Directive out of order"),
@@ -67,30 +67,31 @@
   ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE("Illegal assignment to non-assignable expression"),
   ILLEGAL_NUMBER_OF_PARAMETERS("Illegal number of parameters"),
   INCOMPLETE_STRING_LITERAL("Incomplete string literal"),
-  INTERFACE_METHOD_WITH_BODY("Interface method can not have a body"),
+  INTERFACE_METHOD_WITH_BODY("Interface method cannot have a body"),
   INVALID_FIELD_DECLARATION("Wrong syntax for field declaration"),
   INVALID_IDENTIFIER("The token '%s' cannot be used as an identifier"),
   INVALID_OPERATOR_CHAINING("Cannot chain '%s'"),
-  LOCAL_CANNOT_BE_STATIC("Local function can not be static"),
+  LOCAL_CANNOT_BE_STATIC("Local function cannot be static"),
   MISSING_FUNCTION_NAME("a function name is required for a declaration"),
   NAMED_PARAMETER_NOT_ALLOWED("Named parameter is not allowed for operator or setter method"),
+  NO_SPACE_AFTER_PLUS("Cannot have space between plus and numeric literal"),
   NO_UNARY_PLUS_OPERATOR("No unary plus operator in Dart"),
   NON_FINAL_STATIC_MEMBER_IN_INTERFACE("Non-final static members are not allowed in interfaces"),
   ONLY_ONE_LIBRARY_DIRECTIVE("Only one library directive may be declared in a file"),
   OPERATOR_CANNOT_BE_STATIC("Operators cannot be static"),
   OPERATOR_IS_NOT_USER_DEFINABLE("Operator is not user definable"),
   POSITIONAL_AFTER_NAMED_ARGUMENT("Positional argument after named argument"),
-  REDIRECTING_CONSTRUCTOR_PARAM("Redirecting constructor can not have initializers"),
-  REDIRECTING_CONSTRUCTOR_ITSELF("Redirecting constructor can not have initializers"),
+  REDIRECTING_CONSTRUCTOR_PARAM("Redirecting constructor cannot have initializers"),
+  REDIRECTING_CONSTRUCTOR_ITSELF("Redirecting constructor cannot have initializers"),
   REDIRECTING_CONSTRUCTOR_MULTIPLE("Multiple redirecting constructor invocations"),
-  REDIRECTING_CONSTRUCTOR_OTHER("Redirecting constructor can not have initializers"),
+  REDIRECTING_CONSTRUCTOR_OTHER("Redirecting constructor cannot have initializers"),
   SUPER_CONSTRUCTOR_MULTIPLE("'super' must be called only once in the initialization list"),
   SUPER_CANNOT_BE_USED_AS_THE_SECOND_OPERAND(
       "'super' cannot be used as the second operand in a binary expression."),
   SUPER_IS_NOT_VALID_AS_A_BOOLEAN_OPERAND("'super' is not valid as a boolean operand"),
   SUPER_IS_NOT_VALID_ALONE_OR_AS_A_BOOLEAN_OPERAND(
       "'super' is not valid alone or as a boolean operand"),
-  TOP_LEVEL_CANNOT_BE_STATIC("Top-level field or method can not be static"),
+  TOP_LEVEL_CANNOT_BE_STATIC("Top-level field or method cannot be static"),
   UNEXPECTED_TOKEN("Unexpected token '%s'"),
   UNEXPECTED_TOKEN_IN_STRING_INTERPOLATION("Unexpected token in string interpolation: %s"),
   UNEXPECTED_TYPE_ARGUMENT("unexpected type argument"),