Fixed an attribute hell issue

.gitignore

@@ -22,3 +22,5 @@ docs/
 
 # Code coverage
 *.lst
+
+*.pdb

source/collections/commons.d

@@ -3,10 +3,9 @@ module collections.commons;
 import std.digest.murmurhash;
 
 ///Contains all possible basic attributes that might be used in a foreach situation
-static immutable string[] attrList = ["@trusted", "@safe", "@nogc", "nothrow", "pure",
-	"@nogc nothrow", "@nogc pure", "nothrow pure", "@nogc nothrow pure",
-	/+"@trusted @nogc nothrow", "@trusted @nogc pure", "@trusted nothrow pure", "@trusted @nogc nothrow pure",+/
-	"@safe @nogc nothrow", "@safe @nogc pure", "@safe nothrow pure", "@safe @nogc nothrow pure",];
+static immutable string[] attrList = ["@safe", "@nogc", "nothrow", "pure",
+	"@nogc nothrow", "@nogc pure", "nothrow pure", "@nogc nothrow pure", "@safe nothrow",
+	"@safe @nogc nothrow", "@safe @nogc pure", "@safe nothrow pure", "@safe @nogc nothrow pure"];
 ///Generates overrides to be mixed in with regular code
 string generateOverrides()(){
 	string result;

source/collections/sortedlist.d

@@ -353,6 +353,9 @@ public struct SortedList(E, alias cmp = "a < b", bool allowDuplicates = true, al
 	foreach(e; sis) {
 		writeln(e);
 	}
+	SortedIntList a = SortedIntList([0]);
+	a.remove(0);
+	assert(a.length == 0);
 }
 
 @safe unittest {

source/collections/treemap.d

@@ -829,26 +829,6 @@ public struct TreeMap(K, E, bool nogcIndexing = true, alias less = "a < b") {
 	public @property size_t length() @nogc @safe pure nothrow const {
 		return nOfElements;
 	}
-	/**
-	 * Returns the key of the n-th element.
-	 * NOT WORKING!
-	 */
-	/+public K keyOf(size_t n) {
-		static if(E.stringof != "void"){
-			foreach (key, elem; root) {
-				if (n == 0) {
-					return key;
-				} else n--;
-			}
-		} else {
-			foreach (key; root) {
-				if (n == 0) {
-					return key;
-				} else n--;
-			}
-		}
-		return K.init;
-	}+/
 	/**
 	 * Returns the string representation of the tree.
 	 */