remove depwarn and move isimmutable to the bottom of deprecated.jl

Author: ssikdar1

base/deprecated.jl

@@ -190,3 +190,24 @@ MPFR.BigFloat(x::Real, prec::Int, rounding::RoundingMode) = BigFloat(x, rounding
 end
 
 # END 1.3 deprecations
+
+# BEGIN 1.5 deprecations
+"""
+    isimmutable(v) -> Bool
+
+Return `true` iff value `v` is immutable.  See [Mutable Composite Types](@ref)
+for a discussion of immutability. Note that this function works on values, so if you give it
+a type, it will tell you that a value of `DataType` is mutable.
+
+# Examples
+```jldoctest
+julia> isimmutable(1)
+true
+
+julia> isimmutable([1,2])
+false
+```
+"""
+isimmutable(@nospecialize(x)) = (@_pure_meta; !typeof(x).mutable)
+
+# END 1.5 deprecations

base/reflection.jl

@@ -401,27 +401,6 @@ function datatype_fielddesc_type(dt::DataType)
     return (flags >> 1) & 3
 end
 
-"""
-    isimmutable(v) -> Bool
-
-Return `true` iff value `v` is immutable.  See [Mutable Composite Types](@ref)
-for a discussion of immutability. Note that this function works on values, so if you give it
-a type, it will tell you that a value of `DataType` is mutable.
-
-# Examples
-```jldoctest
-julia> isimmutable(1)
-true
-
-julia> isimmutable([1,2])
-false
-```
-"""
-function isimmutable(@nospecialize(x))
-    depwarn(" isimmutable is deprecated use ismutable instead ", :isimmutable)
-    return (@_pure_meta; !typeof(x).mutable)
-end
-
 """
     ismutable(v) -> Bool