Avoid TLS variables in templates (#447)

Helps cleans up the output of `-mtls` and should not change anything in behavior as well.

Author: WebFreak001

source/mir/serde.d

@@ -298,7 +298,7 @@ template serdeGetAlgebraicAnnotation(T)
  }
  else
  {
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = typeof(__traits(getMember, aggregate, __traits(getAliasThis, T)));
  enum serdeGetAlgebraicAnnotation = .serdeGetAlgebraicAnnotation!A;
  }
@@ -345,7 +345,7 @@ template serdeIsDynamicAlgebraic(T)
  else
  static if (__traits(getAliasThis, T).length)
  {
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = typeof(__traits(getMember, aggregate, __traits(getAliasThis, T)));
  enum serdeIsDynamicAlgebraic = .serdeIsDynamicAlgebraic!A;
  }
@@ -370,7 +370,7 @@ template serdeGetAlgebraicDeserializer(T)
  }
  else
  {
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = typeof(__traits(getMember, aggregate, __traits(getAliasThis, T)));
  alias serdeGetAlgebraicDeserializer = .serdeGetAlgebraicDeserializer!A;
  }
@@ -965,7 +965,7 @@ Deserialization member type
 template serdeDeserializationMemberType(T, string member)
 {
  import std.traits: Unqual, Parameters;
- T* aggregate;
+ private __gshared T* aggregate;
  static if (hasField!(T, member))
  {
  alias serdeDeserializationMemberType = typeof(__traits(getMember, *aggregate, member));
@@ -1022,7 +1022,7 @@ Serialization member type
 template serdeSerializationMemberType(T, string member)
 {
  import std.traits: Unqual, Parameters;
- T* aggregate;
+ private __gshared T* aggregate;
  static if (hasField!(T, member))
  {
  alias serdeSerializationMemberType = typeof(__traits(getMember, *aggregate, member));
@@ -1535,7 +1535,7 @@ template serdeDeserializationFinalDeepProxyMemberTypes(T)
  else
  static if (isAlgebraicAliasThis!T)
  {
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = typeof(__traits(getMember, aggregate, __traits(getAliasThis, T)));
  alias serdeDeserializationFinalDeepProxyMemberTypes = .serdeDeserializationFinalDeepProxyMemberTypes!A;
  }
@@ -1584,7 +1584,7 @@ template serdeSerializationFinalDeepProxyMemberTypes(T)
  else
  static if (isAlgebraicAliasThis!T)
  {
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = typeof(__traits(getMember, aggregate, __traits(getAliasThis, T)));
  alias serdeSerializationFinalDeepProxyMemberTypes = .serdeSerializationFinalDeepProxyMemberTypes!A;
  }
@@ -1864,7 +1864,7 @@ package template isAlgebraicAliasThis(T)
  static if (__traits(getAliasThis, T).length)
  {
  import mir.algebraic: isVariant;
- T* aggregate;
+ private __gshared T* aggregate;
  alias A = AliasSeq!(typeof(__traits(getMember, aggregate, __traits(getAliasThis, T))));
  static if (A.length != 1)
  enum isAlgebraicAliasThis = false;