Update error messages

src/ch02-00-guessing-game-tutorial.md

@@ -668,7 +668,7 @@ error[E0308]: mismatched types
   --> src/main.rs:23:21
    |
 23 |     match guess.cmp(&secret_number) {
-   |                     ^^^^^^^^^^^^^^ expected struct `std::string::String`, found integral variable
+   |                     ^^^^^^^^^^^^^^ expected struct `std::string::String`, found integer
    |
    = note: expected type `&std::string::String`
    = note:    found type `&{integer}`

src/ch03-05-control-flow.md

@@ -95,7 +95,7 @@ error[E0308]: mismatched types
  --> src/main.rs:4:8
   |
 4 |     if number {
-  |        ^^^^^^ expected bool, found integral variable
+  |        ^^^^^^ expected bool, found integer
   |
   = note: expected type `bool`
              found type `{integer}`
@@ -239,7 +239,7 @@ error[E0308]: if and else have incompatible types
 6 | |     } else {
 7 | |         "six"
 8 | |     };
-  | |_____^ expected integral variable, found &str
+  | |_____^ expected integer, found &str
   |
   = note: expected type `{integer}`
              found type `&str`

src/ch10-01-syntax.md

@@ -207,8 +207,8 @@ error[E0308]: mismatched types
  --> src/main.rs:7:38
   |
 7 |     let wont_work = Point { x: 5, y: 4.0 };
-  |                                      ^^^ expected integral variable, found
-floating-point variable
+  |                                      ^^^ expected integer, found
+floating-point number
   |
   = note: expected type `{integer}`
              found type `{float}`

src/ch13-01-closures.md

@@ -402,7 +402,7 @@ error[E0308]: mismatched types
   |
   | let n = example_closure(5);
   |                         ^ expected struct `std::string::String`, found
-  integral variable
+  integer
   |
   = note: expected type `std::string::String`
              found type `{integer}`