fix #28277, replace type with struct in docs

[ci skip]

Author: JeffBezanson

doc/src/manual/calling-c-and-fortran-code.md

@@ -734,7 +734,7 @@ end
 ```
 
 The meaning of prefix `&` is not quite the same as in C. In particular, any changes to the referenced
-variables will not be visible in Julia unless the type is mutable (declared via `type`). However,
+variables will not be visible in Julia unless the type is mutable (declared via `mutable struct`). However,
 even for immutable structs it will not cause any harm for called functions to attempt such modifications
 (that is, writing through the passed pointers). Moreover, `&` may be used with any expression,
 such as `&0` or `&f(x)`.

doc/src/manual/constructors.md

@@ -338,7 +338,7 @@ julia> Point(x::T, y::T) where {T<:Real} = Point{T}(x,y);
 
 Notice that each definition looks like the form of constructor call that it handles.
 The call `Point{Int64}(1,2)` will invoke the definition `Point{T}(x,y)` inside the
-`type` block.
+`struct` block.
 The outer constructor declaration, on the other hand, defines a
 method for the general `Point` constructor which only applies to pairs of values of the same real
 type. This declaration makes constructor calls without explicit type parameters, like `Point(1,2)`
@@ -534,7 +534,7 @@ The problem is that we want `S` to be a larger type than `T`, so that we can sum
 with less information loss. For example, when `T` is [`Int32`](@ref), we would like `S` to
 be [`Int64`](@ref). Therefore we want to avoid an interface that allows the user to construct
 instances of the type `SummedArray{Int32,Int32}`. One way to do this is to provide a
-constructor only for `SummedArray`, but inside the `type` definition block to suppress
+constructor only for `SummedArray`, but inside the `struct` definition block to suppress
 generation of default constructors:
 
 ```jldoctest

doc/src/manual/faq.md

@@ -575,7 +575,7 @@ Main               Module
 gvar_self 13 bytes String
 ```
 
-This does not apply to `function` or `type` declarations. However, anonymous functions bound to global
+This does not apply to `function` or `struct` declarations. However, anonymous functions bound to global
 variables are serialized as can be seen below.
 
 ```julia-repl

doc/src/manual/noteworthy-differences.md

@@ -69,7 +69,7 @@ may trip up Julia users accustomed to MATLAB:
   * In both Julia and MATLAB, the variable `ans` is set to the value of the last expression issued
     in an interactive session. In Julia, unlike MATLAB, `ans` is not set when Julia code is run in
     non-interactive mode.
-  * Julia's `type`s do not support dynamically adding fields at runtime, unlike MATLAB's `class`es.
+  * Julia's `struct`s do not support dynamically adding fields at runtime, unlike MATLAB's `class`es.
     Instead, use a [`Dict`](@ref).
   * In Julia each module has its own global scope/namespace, whereas in MATLAB there is just one global
     scope.