[CPP-418] Some more complex numbers, vectors.

Author: zlaski-semmle

cpp/ql/src/semmle/code/cpp/Type.qll

@@ -1169,8 +1169,6 @@ class ArrayType extends DerivedType {
  * ```
  * typedef int v4si __attribute__ (( vector_size(4*sizeof(int)) ));
  * v4si v = { 1, 2, 3, 4 };
- * typedef float float4 __attribute__((ext_vector_type(4)));
- * float4 vf = (float4){1.0f, 2.0f, 3.0f, 4.0f};
  * ```
  */
 class GNUVectorType extends DerivedType {

cpp/ql/src/semmle/code/cpp/exprs/ArithmeticOperation.qll

@@ -171,8 +171,7 @@ class PostfixDecrExpr extends DecrementOperation, PostfixCrementOperation, @post
  * A C/C++ GNU real part expression.  It operates on `_Complex` or
  * `__complex__` numbers.
  * ```
- * #include <complex.h>
- * _Complex double f = CMPLX( 2.0, 3.0 );
+ * _Complex double f = { 2.0, 3.0 };
  * double d = __real(f);  // 2.0
  * ```
  */
@@ -186,8 +185,7 @@ class RealPartExpr extends UnaryArithmeticOperation, @realpartexpr {
  * A C/C++ GNU imaginary part expression.  It operates on `_Complex` or
  * `__complex__` numbers.
  * ```
- * #include <complex.h>
- * _Complex double f = CMPLX( 2.0, 3.0 );
+ * _Complex double f = { 2.0, 3.0 };
  * double d = __imag(f);  // 3.0
  * ```
  */