Fix some propcore functions can be called only once per tick for no reason (#3475)

* Fix some propcore functions can be called only once per tick for no reason
Fixes:
https://discord.com/channels/231131817640460288/231581733831704578/1452368914737528874

* Fix

Author: Astralcircle

lua/entities/gmod_wire_expression2/core/custom/prop.lua

@@ -832,9 +832,7 @@ end
 
 [nodiscard]
 e2function number entity:propCanSetDupeable()
-	local isOk, Val = pcall(ValidAction, self, this, "noDupe")
-	if not isOk then return 0 end
-
+	if not IsValid(this) then return self:throw("Invalid entity!", 0) end
 	return canMarkDupeable(this, self.player) and 1 or 0
 end
 
@@ -933,7 +931,7 @@ e2function void entity:propSetFriction(number friction)
 end
 
 e2function number entity:propGetFriction()
-	if not ValidAction(self, this, "friction") then return 0 end
+	if not IsValid(this) then return self:throw("Invalid entity!", 0) end
 	return this:GetFriction()
 end
 
@@ -961,10 +959,9 @@ e2function void entity:propPhysicalMaterial(string physprop)
 end
 
 e2function string entity:propPhysicalMaterial()
-	if not ValidAction(self, this, "physprop") then return "" end
+	if not IsValid(this) then return self:throw("Invalid entity!", "") end
 	local phys = this:GetPhysicsObject()
-	if IsValid(phys) then return phys:GetMaterial() or "" end
-	return ""
+	return phys:IsValid() and phys:GetMaterial() or ""
 end
 
 e2function void entity:propSetVelocity(vector velocity)
@@ -1238,7 +1235,7 @@ e2function void entity:ragdollSetAng(angle rot)
 end
 
 e2function table entity:ragdollGetPose()
-	if not ValidAction(self, this) then return end
+	if not IsValid(this) then return self:throw("Invalid entity!", newE2Table()) end
 	local pose = newE2Table()
 	local bones = GetBones(this)
 	local originPos, originAng = bones[0]:GetPos(), bones[0]:GetAngles()