Add E0417, E0424, E0425, E0426, E0430, E0431 and E0432 error explanations

src/librustc_resolve/diagnostics.rs

@@ -397,6 +397,66 @@ impl Bar {
 ```
 "##,
 
+E0417: r##"
+A static variable was referenced in a pattern. Example of erroneous code:
+
+```
+static FOO : i32 = 0;
+
+match 0 {
+    FOO => {} // error: static variables cannot be referenced in a
+              //        pattern, use a `const` instead
+    _ => {}
+}
+```
+
+The compiler needs to know the value of the pattern at compile time,
+which is not possible with a `static` variable. Please verify that the
+variable is spelled correctly and if so, try to use a `const` instead.
+Example:
+
+```
+const FOO : i32 = 0;
+
+match 0 {
+    FOO => {} // ok!
+    _ => {}
+}
+```
+"##,
+
+E0424: r##"
+The `self` keyword was used in a static method. Example of erroneous code:
+
+```
+struct Foo;
+
+impl Foo {
+    fn bar(self) {}
+
+    fn foo() {
+        self.bar(); // error: `self` is not available in a static method.
+    }
+}
+```
+
+Please check if the method's argument list should have contained self,
+&self, or &mut self (in case you didn't want to create a static method),
+and add it if so. Example:
+
+```
+struct Foo;
+
+impl Foo {
+    fn bar(self) {}
+
+    fn foo(self) {
+        self.bar(); // ok!
+    }
+}
+```
+"##,
+
 E0428: r##"
 A type or module has been defined more than once. Example of erroneous
 code:
@@ -448,16 +508,13 @@ register_diagnostics! {
     E0414, // only irrefutable patterns allowed here
     E0415, // identifier is bound more than once in this parameter list
     E0416, // identifier is bound more than once in the same pattern
-    E0417, // static variables cannot be referenced in a pattern, use a
-           // `const` instead
     E0418, // is not an enum variant, struct or const
     E0419, // unresolved enum variant, struct or const
     E0420, // is not an associated const
     E0421, // unresolved associated const
     E0422, // does not name a structure
     E0423, // is a struct variant name, but this expression uses it like a
            // function name
-    E0424, // `self` is not available in a static method.
     E0425, // unresolved name
     E0426, // use of undeclared label
     E0427, // cannot use `ref` binding mode with ...