glsl: Fix typos

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33556>

src/compiler/glsl/ast_to_hir.cpp

@@ -391,7 +391,7 @@ arithmetic_result_type(ir_rvalue * &value_a, ir_rvalue * &value_b,
    /*    "If the operands are integer types, they must both be signed or
     *    both be unsigned."
     *
-    * From this rule and the preceeding conversion it can be inferred that
+    * From this rule and the preceding conversion it can be inferred that
     * both types must be GLSL_TYPE_FLOAT, or GLSL_TYPE_UINT, or GLSL_TYPE_INT.
     * The is_numeric check above already filtered out the case where either
     * type is not one of these, so now the base types need only be tested for

src/compiler/glsl/glcpp/glcpp-lex.l

@@ -403,7 +403,7 @@ PATH			["][]^./ _A-Za-z0-9+*%[(){}|&~=!:;,?-]*["]
 	 * for the lexer. Within <DEFINE> we are looking for the first
 	 * identifier and specifically checking whether the identifier
 	 * is followed by a '(' or not, (to lex either a
-	 * FUNC_IDENTIFIER or an OBJ_IDENITIFIER token).
+	 * FUNC_IDENTIFIER or an OBJ_IDENTIFIER token).
 	 *
 	 * While in the <DEFINE> state we also need to explicitly
 	 * handle a few other things that may appear before the

src/compiler/glsl/glcpp/glcpp-parse.y

@@ -1559,7 +1559,7 @@ typedef enum function_status
  * balanced set of parentheses.
  *
  * When called, 'node' should be the opening-parenthesis token, (or
- * perhaps preceeding SPACE tokens). Upon successful return *last will
+ * perhaps preceding SPACE tokens). Upon successful return *last will
  * be the last consumed node, (corresponding to the closing right
  * parenthesis).
  *