Deprecate 'real' and 'integer' type annotations (pyccel#1813)

Deprecate 'real' and 'integer' type annotations. Fixes
pyccel#1786

---------

Co-authored-by: Yaman Güçlü <[email protected]>

Author: EmilyBourne

CHANGELOG.md

@@ -40,6 +40,7 @@ All notable changes to this project will be documented in this file.
 
 ### Deprecated
 
+-   #1786 : Remove support for `real` and `integer` as type annotations.
 -   \[INTERNALS\] Remove property `ast.basic.TypedAstNode.precision`.
 -   \[INTERNALS\] Remove class `ast.datatypes.DataType` (replaced by `ast.datatypes.PrimitiveType` and `ast.datatypes.PyccelType`).
 -   \[INTERNALS\] Remove unused properties `prefix` and `alias` from `CustomDataType`.

docs/type_annotations.md

@@ -18,7 +18,7 @@ For scalar variables Pyccel supports the following data types:
 
 -   built-in data types: `bool`, `int`, `float`, `complex`
 -   NumPy integer types: `int8`, `int16`, `int32`, `int64`
--   NumPy real types: `float32`, `float64`, `double`
+-   NumPy floating point types: `float32`, `float64`, `double`
 -   NumPy complex types: `complex64`, `complex128`
 
 ## NumPy Arrays

pyccel/ast/type_annotations.py

@@ -339,10 +339,8 @@ def __eq__(self, o):
 
 typenames_to_dtypes = { 'float'   : PythonNativeFloat(),
                         'double'  : PythonNativeFloat(),
-                        'real'    : PythonNativeFloat(),
                         'complex' : PythonNativeComplex(),
                         'int'     : PythonNativeInt(),
-                        'integer' : PythonNativeInt(),
                         'bool'    : PythonNativeBool(),
                         'b1'      : PythonNativeBool(),
                         'void'    : VoidType(),